Takafumi Hamano

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Patents Grantslast 30 patents

Information Patent Grant
Organic electroluminescence element and image forming apparatus or...
- Patent number 6,833,667
- Issue date Dec 21, 2004
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Hamano
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Organic electroluminescence element and image forming apparatus or...
- Publication number 20030164679
- Publication date Sep 4, 2003
- Takafumi Hamano
- H01 - BASIC ELECTRIC ELEMENTS